Sand and gravel separation mechanism for waste slurry and waste residue of ready-mixed concrete
By combining horizontal spiral sand washing machine, inclined spiral sand washing machine and drum screen, the problems of low efficiency and poor adaptability in sand and gravel separation are solved, and efficient and continuous sand and gravel separation is achieved, and product quality and production efficiency are improved.
Patent Information
- Application Number
- CN202420924791.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-04-29
AI Technical Summary
When dealing with premixed concrete waste slurry waste slag, the sand and gravel separation efficiency is low, the traditional plate vibrating screen is insufficient in processing capacity, poor adaptability, and poor separation effect on materials with high viscosity, and large maintenance workload.
The combination of horizontal spiral sand washing machine and inclined spiral sand washing machine is adopted, combined with drum screens and spray pipes and other equipment to achieve the separation of sand and gravel of premixed concrete waste slurry and waste residue. Roller screens replace traditional plate vibrating screens, with stronger processing capacity, suitable for large-scale continuous production, and can effectively handle viscous materials and materials with high humidity.
It improves the separation efficiency and product quality of sand and gravel, achieves a continuous and uninterrupted working state, reduces the maintenance workload of equipment, and improves the simplicity of operation and production efficiency.
Smart Images
Figure CN222709872U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of premixed concrete processing, and in particular relates to a sand and gravel separation mechanism for waste slurry and waste residue of premixed concrete. Background Art
[0002] The waste slurry and slag of ready-mixed concrete are dumped into the plate vibrating screen through the concrete hopper for screening and then fall into the screw elevator. The plate vibrating screen is used to separate large particles of sand and gravel, while the screw elevator is used to separate sand from water and soil.
[0003] At present, traditional technology for separating sand and gravel mostly uses plate vibrating screens. Premixed concrete waste slurry and waste residue are dumped on the plate vibrating screen for screening. The processing capacity of the plate vibrating screen is usually relatively low. When the waste slurry and waste residue need to be processed quickly, the plate vibrating screen may not be able to meet the high production requirements. The plate vibrating screen has relatively poor adaptability to materials, and the separation effect of materials with high viscosity may be compromised. After the plate vibrating screen screens screen the sticky materials, the screen holes are easily blocked, and the cleaning and maintenance workload is large. In addition, the distribution and adjustment of materials by the plate vibrating screen are relatively complicated, and the operating technology requirements are high. Utility Model Content
[0004] In order to make up for the deficiencies of the prior art, the utility model provides a sand and gravel separation mechanism for waste slurry and waste residue of premixed concrete.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A sand and gravel separation mechanism for premixed concrete waste slurry and waste residue comprises a horizontal spiral sand washing machine and an inclined spiral sand washing machine, wherein a discharge port at the bottom of the horizontal spiral sand washing machine is connected with a feed port of the inclined spiral sand washing machine, a drum screen is provided on the inner side of the top of the horizontal spiral sand washing machine and above the sand lifting spiral blades, a feed nozzle is provided on one side of the drum screen, and a gravel discharge nozzle is provided on the other side which is arranged through the upper shell of the horizontal spiral sand washing machine.
[0007] The drum screen replaces the traditional plate vibrating screen. The drum screen has a strong processing capacity and is suitable for large-scale continuous production. The drum screen screens the materials more continuously and can better handle sticky materials and materials with high humidity. The separation efficiency of sand and gravel will be higher. In addition, the materials are more evenly distributed in the drum of the drum screen, and the operation and adjustment are relatively simple.
[0008] Preferably, the top of the horizontal spiral sand washing machine is provided with a enclosure located outside the drum screen.
[0009] Preferably, a plurality of spray pipes are arranged at equal distances on the enclosure and pass through the enclosure for spraying the drum screen. The spray pipes are connected to a water inlet main. The spray pipes can spray the drum screen and quickly clear blockages on the drum screen.
[0010] Preferably, the outer side surface of the enclosure is provided with a feeding trough connected to the feeding nozzle, so that the waste slurry and waste residue of the ready-mixed concrete can enter the equipment evenly.
[0011] Preferably, the bottom wall of the upper chute is inclined toward the feed nozzle, which helps to accelerate the flow of the material.
[0012] Preferably, the loading trough is provided with a water spray pipe for flushing the unloaded premixed concrete waste slurry and waste residue, so as to flush and clean the unloaded premixed concrete waste slurry and waste residue.
[0013] Preferably, a sewage overflow port is provided on the casing shared by the horizontal spiral sand washing machine and the inclined spiral sand washing machine for discharging sewage generated during the sand washing process.
[0014] Compared with the prior art, the technical effects and advantages of the utility model are:
[0015] The sand and gravel separation mechanism of the ready-mixed concrete waste slurry and waste residue, the horizontal spiral sand washing machine is used for preliminary sand washing and removal of impurities such as soil, while the inclined spiral sand washing machine further cleans and separates sand and gravel. The two are connected to each other to achieve a continuous and uninterrupted working state, improving production efficiency, separation efficiency and product quality.
[0016] The addition of the drum screen increases the versatility of the equipment, allowing for more comprehensive screening, cleaning and classification of sand and gravel. The drum screen screens the material more continuously, has a stronger processing capacity, and improves the separation efficiency of sand and gravel.
[0017] Spray pipes and water spray pipes are used to spray and clean sand and gravel, which helps to further clean sand and gravel, improve separation effect and product quality. The water spray pipe is used to wash the waste slurry and waste residue of ready-mixed concrete, remove attached impurities, improve subsequent processing efficiency and product quality. The setting of the feeding chute allows the waste slurry and waste residue of ready-mixed concrete to enter the equipment evenly, and the inclined bottom wall helps to accelerate the flow of materials, maintain a smooth feeding state, and improve the uniformity of materials. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a structural schematic diagram of the utility model from the first perspective;
[0019] Figure 2 It is a structural schematic diagram of the utility model from a second viewing angle;
[0020] Figure 3This is a schematic diagram of the structure of the utility model after the drum screen is dismantled;
[0021] Figure 4 It is a structural schematic diagram of the drum screen of the utility model.
[0022] In the figure: 1. Horizontal spiral sand washing machine; 2. Inclined spiral sand washing machine; 3. Machine casing; 4. Sand lifting spiral blades; 5. Drum screen; 6. Feed nozzle; 7. Stone discharge nozzle; 8. Enclosure; 9. Spray pipe; 10. Water inlet main pipe; 11. Feeding trough; 12. Water spray pipe; 13. Sewage overflow outlet. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] The following is combined with Figure 1-4 To further explain this application in detail,
[0025] The embodiment of the present application discloses a sand and gravel separation mechanism for waste slurry and waste residue of ready-mixed concrete, comprising a horizontal spiral sand washing machine 1 and an inclined spiral sand washing machine 2. The discharge port at the bottom of the horizontal spiral sand washing machine 1 is connected with the feed port of the inclined spiral sand washing machine 2. A drum screen 5 is provided on the inner side of the top of the horizontal spiral sand washing machine 1 and above the sand lifting spiral blade 4. A feed nozzle 6 is provided on one side of the drum screen 5, and a gravel discharge nozzle 7 is provided on the other side and is arranged through the upper shell of the horizontal spiral sand washing machine 1.
[0026] The horizontal spiral sand washing machine 1 and the inclined spiral sand washing machine 2 are connected to realize the connection between the two equipments, which can achieve continuous and uninterrupted working state and improve production efficiency. The horizontal spiral sand washing machine 1 and the inclined spiral sand washing machine 2 are responsible for different working links respectively. The horizontal spiral sand washing machine 1 is used for preliminary sand washing and removal of impurities such as soil, and the inclined spiral sand washing machine 2 further cleans and separates sand and gravel, thereby improving separation efficiency and product quality.
[0027] The addition of the drum screen 5 increases the versatility of the equipment, and can screen and separate sand and gravel more comprehensively. It can not only remove soil and impurities in the sand and gravel, but also classify and adjust the sand and gravel. By combining the horizontal spiral sand washing machine 1, the inclined spiral sand washing machine 2 and the drum screen 5 together, the space occupied by the equipment can be saved, and the layout of the entire sand and gravel separation and processing system can be more compact and efficient. The three devices are interconnected, and the operation process is relatively simple and clear. The operator can more easily grasp the working status and control of the entire system.
[0028] Moreover, the drum screen 5 replaces the traditional plate vibrating screen. The drum screen 5 has a strong processing capacity and is suitable for large-scale continuous production. The drum screen 5 screens the materials more continuously and can better handle sticky materials and materials with high humidity. The separation efficiency of sand and gravel will be higher. In addition, the materials are distributed more evenly in the drum of the drum screen 5, and the operation and adjustment are relatively simple.
[0029] The top of the horizontal spiral sand washing machine 1 is provided with a surrounding plate 8 located outside the drum screen 5.
[0030] A plurality of spray pipes 9 are arranged at equal intervals on the enclosure 8 and pass through the enclosure 8 for spraying the drum screen 5 . The spray pipes 9 are connected to a water inlet main 10 .
[0031] The setting of the spray pipe 9 can spray the drum screen 5, which helps to further clean the sand and gravel, improve the separation effect and product quality. The setting of the spray pipe 9 can make maintenance work more convenient, quickly clean the blockage on the drum screen 5, and improve the operating efficiency of the equipment.
[0032] The outer side of the enclosure 8 is provided with a feeding trough 11 which is connected to the feeding nozzle 6.
[0033] The bottom wall of the feeding chute 11 is inclined toward the feeding nozzle 6 .
[0034] The loading trough 11 is provided with a water spray pipe 12 for flushing the unloaded ready-mixed concrete waste slurry and waste residue.
[0035] Through the design of the feeding chute 11, the waste slurry and waste residue of ready-mixed concrete can enter the equipment evenly, and the inclined bottom wall helps to accelerate the flow of materials, maintain a smooth feeding state, and improve the uniformity of the materials.
[0036] A water spray pipe 12 is provided on the feeding chute 11, which can be used to rinse and clean the unloaded premixed concrete waste slurry and waste residue, which helps to remove impurities such as dirt and dust attached to the surface of the material, improve the efficiency and product quality of the subsequent processing process, and the setting of the water spray pipe 12 can prevent the waste residue from accumulating and clogging in the feeding chute 11, keep the equipment unobstructed, reduce downtime for maintenance, and improve production efficiency.
[0037] A sewage overflow port 13 is provided on the casing 3 shared by the horizontal spiral sand washing machine 1 and the inclined spiral sand washing machine 2 .
[0038] The sewage overflow port 13 can be used to discharge the sewage generated during the sand washing process to avoid excessive accumulation of sewage inside the casing 3 and keep the equipment clean and operating normally. When the waste residue processed by the sand washing machine contains more soil and impurities, a large amount of sewage will be generated. The sewage overflow port 13 can be set to discharge when there is too much sewage to avoid equipment failure or damage due to overload.
[0039] The horizontal spiral sand washing machine 1 in the sand and gravel separation mechanism of the ready-mixed concrete waste slurry and waste residue is responsible for preliminary sand washing and removal of impurities such as soil. The waste residue is sent into the sand washing machine through spiral blades, and then the water flow flushes and stirs to achieve the effect of cleaning and removing impurities. The inclined spiral sand washing machine 2 further cleans and separates the sand and gravel. The fine sand material is rotated to the top of the casing 3 in the water by the action of the inclined spiral. The drum screen 5 comprehensively screens and separates the material. Through continuous screening and flushing, impurities and soil can be effectively removed, and the sand and gravel can be classified and adjusted.
[0040] The spray pipe 9 is used to spray the drum screen 5 to further clean the sand and gravel, thereby improving the separation effect and product quality; the water spray pipe 12 is used to rinse and clean the unloaded ready-mixed concrete waste slurry and waste residue. Both settings are helpful to remove impurities attached to the surface of the material, thereby improving production efficiency and product quality.
[0041] In short, this sand and gravel separation mechanism realizes the rapid, efficient and high-quality sand and gravel separation of ready-mixed concrete waste slurry and waste residue through the coordinated work of the horizontal spiral sand washing machine 1, the inclined spiral sand washing machine 2, the drum screen 5 and other equipment. The whole process has a high degree of automation, simple operation and convenient maintenance.
[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A sand and gravel separation mechanism for waste slurry and waste residue of ready-mixed concrete, characterized in that: The invention comprises a horizontal spiral sand washer (1) and an inclined spiral sand washer (2), wherein the discharge port at the bottom of the horizontal spiral sand washer (1) is connected to the feed port of the inclined spiral sand washer (2), a drum screen (5) is provided on the inner side of the top end of the horizontal spiral sand washer (1) and above the sand lifting spiral blade (4), a feed nozzle (6) is provided on one side of the drum screen (5), and a stone discharge nozzle (7) is provided on the other side and is arranged through the upper shell of the horizontal spiral sand washer (1).
2. The sand and gravel separation mechanism for waste slurry and waste residue of ready-mixed concrete according to claim 1, characterized in that: The top of the horizontal spiral sand washing machine (1) is provided with a surrounding plate (8) located outside the drum screen (5).
3. The sand and gravel separation mechanism for waste slurry and waste residue of ready-mixed concrete according to claim 2, characterized in that: A plurality of spray pipes (9) are arranged at equal intervals on the enclosure (8) and pass through the enclosure (8) for spraying the drum screen (5). The spray pipes (9) are connected to a water inlet main (10).
4. The sand and gravel separation mechanism for waste slurry and waste residue of ready-mixed concrete according to claim 2, characterized in that: The outer side surface of the enclosure plate (8) is provided with a feeding trough (11) which is connected to the feeding nozzle (6).
5. The sand and gravel separation mechanism for waste slurry and waste residue of ready-mixed concrete according to claim 4, characterized in that: The bottom wall of the feeding trough (11) is arranged to be inclined toward the feeding nozzle (6).
6. The sand and gravel separation mechanism for waste slurry and waste residue of ready-mixed concrete according to claim 4, characterized in that: The loading trough (11) is provided with a water spray pipe (12) for flushing the discharged premixed concrete waste slurry and waste residue.
7. The sand and gravel separation mechanism for waste slurry and waste residue of ready-mixed concrete according to claim 4, characterized in that: A sewage overflow port (13) is provided on the casing (3) shared by the horizontal spiral sand washing machine (1) and the inclined spiral sand washing machine (2).